If you want to extract the audio from a video file:
ffmpeg -i input.mkv -c:v libx264 -crf 18 -c:a aac output.mp4
This command converts the input.mkv file to output.mp4 , using H.264 for video and AAC for audio.
ffmpeg -i input.mkv -c:v libx264 -crf 18 -c:a aac output.mp4 abbott elementary s01e13 ffmpeg
This command converts the input.mkv file to output.mp4 , using H.264 for video and AAC for audio. If you want to extract the audio from